Safe-door-locking mechanism



NOV, 25; 1924' J. W. HALTEMAN ET AL SAFE DOOR LOCKING MECHANISM Filed March 1, 1923 2 Sheets-Sheet l 93? MuM Nov. 25, 1924.

J. W. HALTEMAN ET AL SAFE DOOR LOCKING MECHANISM IIQNKN Filed March 1, 1923 2 Shana-Sheet 2 j v w mag Mal/mm 1? W 4/".

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Patented Nov. 25, 1924.

JOHN W. HAL'IEMAN AND WILLIAM RYTER, 0F PHILADELPHIA, PENNSYLVANIA.

SAFE-DOOB-LOCKING MECHANISM.

Application filed March 1, 1923.

T 0 all to 710m, it may concern Be it known that we, JOHN WV. HALTE- MAN and l/VILLIAM. RYTER, citizens of the United States of America, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Safe- Door-Locking Mechanism, of which the following is a specification.

This invention relates to locking mechanism for doors of safes and vaults and has for its object to project the door bolts into the door-jamb of the safe body independently of the bolt lockin mechanism.

A further object of the invention is the provision of means adapted to prevent withdrawal of the ordinary bolt-work in the event that the combination of the safe or vault is destroyed or damaged.

A still further object of this invention is to provide a locking mechanism for safes which is comparatively inexpensive, consists of few parts, and which is strong and durable in operation.

Other objects and advantages of this invention will be apparent to those skilled in the art from the following description taken in conjunction with the accompanying drawings and the particular features of novelty will be pointed out in the appended claims.

In the drawings:

Figure 1 is a front elevation of a safe embodying the present invention,

Fig. 2 is a view, taken on the line 2-2, Fig. 1,

Fig. 3 is a top plan View of the bolt-carrier associated with the present invention,

Fig. 4 is a view, partly in section, of the bolt carrier and its associated spindle, and

Fig. 5 is an elevation of one of the lock cases.

Referring now, more particularly to the drawings, a safe of ordinary construction is shown in Figure 1, said safe having a door 2, which is shown in section in Fig. 2.

The door 2 is provided with anopening through which extends the end 3 of a tubular, rotatable spindle 4; a collar 5, preferably formed integral with said spindle serving to retain the latter in position.

Secured to the end 3 of spindle 4 by means of pins 6 is an operating wheel 7, said Serial No. 622,196.

tion lock, which latter is operated by a knob 9. The lock case 8 is provided near its lower end with an annular groove 10, pins 6, hereinbefore mentioned, extending through a flange 11 depending from wheel 7 and spindle end 3 into said groove, thus serving as a means for limiting the movement of lock case 8.

Positioned within the lower end of spindle 4, and supported on shoulders 12 and 13 therein is a hollow, interiorly threaded T- shap-ed bearing 14 the head of which is provided with a recess 15 which receives one end of a coil spring 16. The other end of spring 16 extends into a recess 17 in look case S, in which is loosely mounted a bearing cup 18 which carries a plurality of ball bearings 19, which latter work against lock case 8 for an obvious purpose.

As shown more clearly in Fig. 5, the lower end of lock case 8 is provided with a looking lug 20 which is adapted to engage a bayonet slot 21, formed in the upper portion of bearing 14, thus interlocking case 8 and bearing 14 when the combination lock in look case 8 is worked correctly, permitting lock case 8 to be pressed inwardly against the tension of spring 16.

As before mentioned, the T-shaped bearing 14 is hollow, and it is also interiorly screw threaded to receive the end of arm 22 of a U-shaped bolt lock-bar 23. To prevent accidental dislodgment of the bearing 14, the same is provided with an annular recess 24 into which projects one end of a pin 24 which is threaded through spindle 4.

Below the threaded end of arm 22 is provided an annular rack 25 which is adapted to mesh with segmental gears 26 which latter are pivotally mounted in apertures 27 formed in spindle 4.

The lower end of spindle 4 is exteriorly screw threaded as shown at 28 and carries an interiorly threaded bolt-carrier 29 which is reciprocable on said spindle 4. The rim of the bolt-carrier 29 is beveled as shown at 29 and is provided with a plurality of undercut recesses 30, shown more clearly in Figs. 3 and 4, which extend almost to the base of the bolt-carrier 29, but leave a supporting base 30 at the bottom of each recess 30.

The numerals 31 designate the main portions of the bolts, the same being preferably cylindrical, while the inner ends of the bolts are tapered and beveled at the base as shown at 32 to conform to the bevel of the rim of the bolt-carrier 29.

The smaller end of the bolt-carrier 29 is provided with an annular recess in. which'is seated a keeper or retaining ring 33, secured to the bolt-carrier 29 by screws 34 or the like.

The before mentioned gear segments 26 are so positioned in spindle 4 as to be adapted to be projected into grooves 54 extending through the bolt-carrier 29, adjacent the inner threaded portion thereof, as clearly shown in Figs. 3 and 4.

Positioned adjacent the first mentioned aperture in door 2, is a second aperture in which is rotatably and slidably mounted a lock case 35, provided with a combination lock which latter is operated by a knob 36. A supporting piece 37 is secured to the door in any suitable manner as an additional support for said lock case.

The lock case 35 extends into a hollow spindle 38 which may be rigidly secured to the interior of the door 2, if desired. The hollow spindle 38 is provided with an interiorly arranged flange 39 at the lower end thereof, forming an annular shoulder 40 which supports a hollow rotatable T-shaped bearing 41. To prevent accidental dislodgment of the bearing 41, like hearing 14, it is provided with an annular recess 42 into which extends a pin 43, screw threaded through the lower end of spindle 38. To prevent withdrawal of lock case 35 said case is provided with a recess 44, a pin 45 extending through spindle 38 into said recess for an obvious purpose.

The head of bearing 41 is provided with a recess 46 in which is positioned the lower end of a coil spring 47 the upper end of which spring extends into a central recess 48 in look case 35 and'supports a bearing cup 49 having ball bearings 50 therein for an obvious purpose.

Like lock case 8, look case 35 is provided at its lower end with a locking lug 51 which is adapted to engage a bayonet slot (not shown) in bearing 41 when lockcase 35 is pushed inwardly following the correct operation of the combination therein.

As before mentioned, the bearing 41 is hollow; it is also interiorly screw threaded to receive the threaded end 52 of arm 53 of U-shaped lock-bar 23.

In operation, supposing the safe door 2 closed and completely looked, the parts assuming the position indicated in Fig. 2. If now, a person knowing the combinations, desired to open the door 2 to gain access to the interior of the safe, he would operate the combinationlock in look case 8, and when correctly operated said case would be ushed inwardly, thus interlocking it with earing 14. Then the combination lock in lock case 35 would be operated and the case 35 then pushed inwardly to interlock it with bearing 41. The two cases (8 and 35) would then be simultaneously rotated thus rotating bearings lt and 41 forcing the U- shaped lock bar 23 away from the door 2. From an inspection of Fig. 2 it will be clear that when the lock bar 23 is being moved, the segmental gears 26 will be rotated, due to their engagement with the rack 25, until said segmental gears are entirely within the spindle 4. If desired,-a stop may be provided within the spindle 4 to limit the movement of the gears 26, but such a stop is not really a necessity.

The segmental gears 26 being now within the spindle 4, have become disengaged from the bolt-carrier 29, the wheel 7 may be rotated which will rotate spindle 4 and force the bolt-carrier 29 away from the door 2 thus withdrawing bolts 31 from looking relation with the door-jamb of the safe body. The door 2 may then be swung open on its hinges.

From the above description it will be obvious that the arrangement of the several parts of the present invention may be changed at will, thus obtaining a multiplicity of combinations necessary to open the door. For example the positions of the bearings 14 and 41 may be varied, necessitating a change in the combinations of lock cases 8 and 35, or the combinations within lock cases 8 and 35 may bechanged as desired, or further, the'pos'ition of lock-bar 23, or the gear segments 26 may be changed,

It is believed that the invention as described will be readily understood by those skilled in the art, but we desire it understood that various changes in the form and proportions of the device may be made without departing from the spirit of the invention as set forth in the appended claims.

lVhat we claim as new and desire to secure by Letters Patent of the United States 1. In a safe door locking mechanism, a rotatable spindle, radial sliding door bolts, bolt projecting and retracting means operable by said spindle, a lock bar within said spindle, means in said spindle for locking said bolt projecting and retracting means, and means on the safe door for unlocking said bolt projecting and retracting means.

2. In a safe door locking mechanism, 'a rotatable spindle, a bolt lock-bar having a portion thereof within said spindle, means engaging each end of said look-bar whereby the latter may be reciprocated, bolt ro'ectin and retractin means 0 erable by said spindle, and means in said spindle for locking and unlocking said bolt projecting and retracting means upon reciprocation of said bolt lock-bar.

3. In a safe door locking mechanism, a

rotatable hollow spindle, a bolt lock-bar having a portion thereof working within said spindle, a rotatable bearing for each end of said bolt lock-bar, means engaging said bearings whereby upon rotation of said means said bolt lock-bar may be reciprocated, bolt projecting and retracting means on said spindle and operable thereby, and a plurality of segmental gears within said spindle adapted to lock and unlock said bolt projecting and retracting means upon reciprocation of said bolt lock-bar.

4C. In a safe door locking mechanism, a rotatable hollow spindle, a bolt lock-bar having a portion thereof working within said spindle, means engaging the ends of said bolt lock-bar and operable simultaneously whereby said lock-bar may be reciprocated, bolt projecting and retracting means secured to said spindle, and means connected to said spindle whereby said bolt projecting and retracting means may be locked or unlocked upon movement of said lock-bar.

5. In a safe door locking mechanism, a hollow spindle, a substantially U-shaped bolt lock-bar having one arm thereof positioned and working within said spindle, a bearing within said spindle and connected to said bolt lock-bar arm, a bearing connected to the opposite arm of said bolt lockbar, means operable simultaneously for engaging and rotating said bearings whereby said bolt lock-bar is reciprocated, bolt projecting and retracting means operable by said spindle, and means operable upon movement of said bolt lock-bar for locking and unlocking said bolt projecting and retracting means.

6. In a safe door locking mechanism, bolt projecting and retracting means, means for operating said bolt projecting and retracting means, a reciprocable lock-bar, means for reciprocating said lock-bar, and means cooperating with said lock-bar and said bolt projecting and retracting means whereby said bolt projecting and retracting means is positively locked.

7. In a safe door locking mechanism, a spindle, bolt projecting and retracting means mounted on said spindle and movable therewith, a lock-bar having one end thereof working within said spindle, said end being provided with a rack, a bearing for each end of said lock bar, means for reciprocating said lock-bar, and gear segments secured within said spindle and 00- operating with said rack whereby upon movement of said lock-bar said bolt projecting and retracting means is positively locked by or unlocked from said gear segments.

In testimony whereof we hereby affix our signatures.

JOHN l/V. IIALTEMAN. WVILLIAM RYTER. 

